126523412 has 6 divisors (see below), whose sum is σ = 221415978. Its totient is φ = 63261704.

The previous prime is 126523399. The next prime is 126523421. The reversal of 126523412 is 214325621.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 115004176 + 11519236 = 10724^2 + 3394^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15815423 + ... + 15815430.

It is an arithmetic number, because the mean of its divisors is an integer number (36902663).

Almost surely, 2^126523412 is an apocalyptic number.

It is an amenable number.

126523412 is a deficient number, since it is larger than the sum of its proper divisors (94892566).

126523412 is a wasteful number, since it uses less digits than its factorization.

126523412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31630857 (or 31630855 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 126523412 is about 11248.2626214007. The cubic root of 126523412 is about 502.0230197430.

The spelling of 126523412 in words is "one hundred twenty-six million, five hundred twenty-three thousand, four hundred twelve".